A helicopter blade spins 775 times in 3 minutes. find the rate of the revolutions per second.

Answers

Answer 1

Answer: Use the proportions property:

775 times ---------- 180 sec
x ---------- 1 sec

$x=(775)/(180)=4.3 \ times \ per \ sec$

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If i is raised to an even power, then it can not simplify to be

Answers: -1, 1, i

Answers

Answer:

OPtion C (i)

Step-by-step explanation:

Given that i is raised to even power.

We have in complex number one part as imaginary number

Imaginary number is denoted by i, which is square root of -1.

In real numbers we can have perfect squares as only positive

Hence square root of -1 is only imaginary

When i is raised to even powers we get

$i^2=-1\ni^4=1\ni^6=-1\ni^8=1$

and so on.

i.e. this answer can not be imaginary but alternating between -1 and 1. Hence cannot simplify to i

the correct answer is

C) i

2 more than the product of 4 times m Express algebraically

Answers

The product of 4 times 'm' . . . . . 4m

2 more than that . . . . . . . . . . . . 4m + 2

Urgent !! please help !! can someone help me with this problem and show work

Answers

Answer:

x = 7 x= -2

Step-by-step explanation:

x^2 -5x -14 =0

What 2 numbers multiply to -14 and add to -5

-7*2 = -15

-7 +2 = -5

(x-7) (x+2) =0

Using the zero product property

x-7 =0 x+2 = 0

x = 7 x= -2

Answer:

Using the snowflake method, factors that multiply to give -14 and add to give -5 are: 2 and -7.

the factors are: (x+2)(x-7)

C(x) = (x^1/7)(x + 8)Find the inflection points.
(x, y) =

(smaller x-value)
(x, y)=
(larger x-value)
(x, y)=

Answers

C(x) = 8/49 x^-6/7 - 48/49 x^-13/7
= 8/49 x^-6/7 (1 - 6/x)
So the inflection point is at x = 6
hope it helps

Four of the angles of a pentagon measure 85°, 110°, 135°, and 95°. Find the measure of the missing angle. A. 115° B. 95°C. 135°D. 85°

Answers

Hence the missing angle is 115 degrees

Sum of angle in a pentagon

The sum of an interior angle of a pentagon is 540 degrees

Let the value of the fifth angle be "x", hence;

x + 85°+ 110° + 135° + 95° = 540

x = 540 - (85°+ 110° + 135° + 95°)

x = 540 - 425

x = 115 degrees

Hence the missing angle is 115 degrees

Learn more on angles in a pentagon here: brainly.com/question/21475963

sum of all 5 angles of a pentagon = 540°
85 + 110 + 135 + 95 = 425
540 - 425 = 115
missing angle = 115° (answer is A)

Slope-intercept form (4,-2) and (-8,13)

Answers

Answer: 15/12

Step-by-step explanation:

-2- 13 =-15

4- -8 = 12

Remember the formula y2-y1. Divided by x2 - x1

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Prime factorization of 147